CODEWITHSUNDEEP
pythonwiresharkscapymulticastmdns
python3.789
python3.789

Reputation: 276

Send MDNS request with Python Scapy

I have device in my LAN that send MDNS that looks like that in Wireshark

ip src: 192.168.1.41 , ip dst: 224.0.0.251 , src port : 5353 , dst port : 5353

MDNS    228 Standard query response 0x0000 PTR, cache flush abcd.local PTR, cache flush abcd.local NSEC, cache flush 192.168.1.41.in-addr.arpa NSEC

That mean in 192.168.1.41 there is abcd.local.

So I tried to send multicast packet in that LAN to get an answer from 192.168.1.41 with abcd.local MDNS

from scapy.all import *
sr1(IP()/UDP(dport=5353)/DNS(qd=DNSQR(qtype="PTR", qname="abcd.local")))

That packet was sent , but I didn't see any response from 192.168.1.41 , why is that?

Maybe I send wrong MDNS request ?

Upvotes: 2

Views: 709

Answers (0)

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